any formulas for finding mass & volume?

Question

i need them urgently pls!! D:

i should've said what type of subject i'm experimenting on: it's water. a LIQUID. ><

Answer 1

Hi,
The volume of a solid object is a numerical value given to describe the three-dimensional concept of how much space it occupies. One-dimensional objects (such as lines) and two-dimensional objects (such as squares) are assigned zero volume in the three-dimensional space.

Volumes of straight-edged and circular shapes are calculated using arithmetic formulas. Volumes of other curved shapes are calculated using integral calculus, by approximating the given body with a large amount of small cubes or concentric cylindrical shells, and adding the individual volumes of those shapes. The generalization of volume to arbitrarily many dimensions is called content.[citation needed] In differential geometry, volume is expressed by means of the volume form.

Volume and Capacity are sometimes distinguished, with capacity being used for how much a container can hold (with contents measured commonly in litres or its derived units), and volume being how much space an object displaces (commonly measured in cubic metres or its derived units).

Volume and capacity are also distinguished in a capacity management setting, where capacity is defined as volume over a specified time period.

Volume is a fundamental parameter in thermodynamics and it is conjugate to pressure.
Volume formulae
Common equations for volume:
Shape Equation Variables
A cube: s = length of a side
A rectangular prism: l = length, w = width, h = height
A cylinder (circular prism): r = radius of circular face, h = distance between faces
Any prism that has a constant cross sectional area along the height**: A = area of the base, h = height
A sphere: r = radius of sphere
which is the first integral of the formula for Surface Area of a sphere
An ellipsoid: a, b, c = semi-axes of ellipsoid
A pyramid: A = area of base, h = height from base to apex
A cone (circular-based pyramid): r = radius of circle at base, h = distance from base to tip
Any figure (calculus required) h = any dimension of the figure, A(h) = area of the cross-sections perpendicular to h described as a function of the position along h
this will work for any figure (no matter if the prism is slanted or the cross-sections change shape).

(The units of volume depend on the units of length - if the lengths are in metres, the volume will be in cubic metres, etc)

The volume of a parallelepiped is the absolute value of the scalar triple product of the subtending vectors, or equivalently the absolute value of the determinant of the corresponding matrix.

The volume of any tetrahedron, given its vertices a, b, c and d, is (1/6)·|det(a−b, b−c, c−d)|, or any other combination of pairs of vertices that form a simply connected graph.

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Mass is the property of a physical object that quantifies the amount of matter and energy it is equivalent to. Mass is a central concept of classical mechanics and related subjects, and there are several forms of mass within the framework of relativistic kinematics (see mass in special relativity and mass in General Relativity). In the theory of relativity, the quantity invariant mass, which in concept is close to the classical idea of mass, does not vary between single observers in different reference frames. STUFF.

In classical mechanics, there are three types of mass or properties called mass:

Inertial mass is a measure of an object's resistance to changing its state of motion when a force is applied. An object with small inertial mass changes its motion more readily, and an object with large inertial mass does so less readily.
Passive gravitational mass is a measure of the strength of an object's interaction with the gravitational field. Within the same gravitational field, an object with a smaller passive gravitational mass experiences a smaller force than an object with a larger passive gravitational mass. (This force is called the weight of the object. In informal usage, the word "weight" is often used synonymously(confused with) with "mass", because the strength of the gravitational field is roughly constant everywhere on the surface of the Earth. In physics, the two terms are distinct: an object will have a larger weight if it is placed in a stronger gravitational field, but its passive gravitational mass remains unchanged.)
Active gravitational mass is a measure of the strength of the gravitational field due to a particular object. For example, the gravitational field that one experiences on the Moon is weaker than that of the Earth because the Moon has less active gravitational mass.
Although inertial mass, passive gravitational mass and active gravitational mass are conceptually distinct, no experiment has ever unambiguously demonstrated any difference between them. Einstein developed his general theory of relativity by working on the assumption that this correspondence between inertial and gravitational masses is not accidental: that no experiment will ever detect a difference between them (the weak version of the equivalence principle) because "acceleration" (due to an external force) and "weight" (due to a gravitational field) are themselves identical.

Answer 2

Using the formula you have, any one measurement may be calculated if you know the other two. Density may be looked up if you know what the material is. Mass is usually measured on a balance. Volume may be measured by fluid displacement. It may also be calculated from linear measurements if the object has a regular geometric shape. If you have a cube, for example, just measure one edge because V = s³.

Answer 3

water has a mass of 1 gm per cubic centimeter

so find the volume of the container in cubic centimeters (1000 of them are in each liter) and you will have the grams of mass! really convenient for water!

do you need help calculating the volume? (have given you an easy site with about 6 shapes)

for example, it shows....

for a sphere V = (4/3) (pi) r^3 where pi = 3.14159265358979323...
for a cube, the volume = (side)^3

etc.

hope that helps, WhoelseButUrseh!

Answer 4

I can tell you for Volume:
Volume of any specific object = {(height) X((area of top)+(area of bottom)+ (4X(area of Middle)))/6)

For example if you want the area os a sphere:
then area of top = 0
area of bottom = 0
area of middle = pi X R2 ( square of R)
height = 2 R ( diameter)
so as per the formula you have
( 2 R X(( 0 + 0 + 4 pi R2)) /6)
= 4/3 pi R3 ( cube of R)

All the best

Answer 5

Density = mass / volume

If you are looking more for thermodynamics, check out http://www.xs4all.nl/~johanw/physics-hyperref.pdf

Answer 6

read a book on it

Answer 7

mass =
/
|density*dv
/

volume =
/
|dv
/